JPS5930370Y2 - Air conditioner outdoor unit - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a separate air conditioner, and particularly to an outdoor unit thereof.

In recent years, efforts have been made to make indoor units of air conditioners lighter and thinner, mainly by making them all plastic, but outdoor units can also be installed on window frames, 2 handrails, etc., expanding the conditions of installation use. The aim was to reduce weight for the purpose of measuring.

However, the casing is made of plastic etc. to reduce weight.
Even if we tried to make the product thinner and expand its installation usage conditions, it was still extremely difficult to ground the case.

This idea was made in consideration of these points,
The purpose is to facilitate grounding in an all-plastic housing.

Hereinafter, this invention will be explained in detail with reference to the embodiment shown in FIGS. 1 to 3. Reference numeral 1 denotes an outdoor casing of an air conditioner, which is composed of a base 2 and a cabinet 3.

Cabinet 3 is facing 4. Top surface 5. Formed from plastic etc. from the right side 6 to the left side (not shown),
The front face 4 has an air blowing lower, and the top face 5 has an air suction port 8.

On the other hand, the base 2 has a back 9. A partition plate 13 is formed integrally with the bottom surface 10 and partitions the heat exchange chamber 11 and the compressor chamber 12, and the back surface 9 has a back suction port 14.

Reference numeral 15 denotes a blower, which is pivotally supported by a motor 16 attached approximately to the center of the back surface 10 of the base.

Reference numeral 17 denotes a heat exchanger provided in a coil shape so as to surround the blower 15, and is opposed to the air suction port 8 and the rear suction port 14 on the top surface 5 and the back surface 9.

Reference numeral 18 denotes a compressor, and a lower square leg 21 is fitted and supported in a recess 20 of a bottom plate 19 provided at the inner bottom of the compressor chamber 12.

Reference numeral 22 denotes a compressor cover surrounding the compressor 18, which includes a rear cover 23 that is brought into close contact with the back surface 9, and an L-shaped front cover that is provided to partition the compressor chamber 12 and form an electrical component chamber 24. The left end of the front cover 25 extends beyond the partition plate 13 into the heat exchange chamber 11 to provide a bent portion 26.

27 is a protruding piece that protrudes further leftward from the left end of the front cover 25 and is fixed to the bent part 26 by welding or the like;
Moreover, it is brought into contact with the heat exchanger 17 disposed in the heat exchange chamber 11.

Reference numeral 28 denotes a grounding fitting, which is bent into a substantially uniform shape so as to come into surface contact with the rear cover 23 of the compressor cover 22, and is provided with a hole 30 that fits into the positioning convex portion 29 provided on the back surface 9 of the base. A ground screw hole 32 is bored in the bent surface 31 of the other end.

33 is a screw screwed to this grounding fitting 28, 34 is a grounding hole provided at the bottom of the right side 6 of the cabinet 3,
The grounding fitting 28 and screw 33 are exposed.

In addition, 35 is a partition plate 1 that separates the rear cover 23 and the front cover 25.
This is a screw that is integrally tightened and fixed to 3.

In the outdoor unit of an air conditioner configured in this way,
1. A compressor chamber 1 in a base 2 made of plastic.
A bottom plate 19 made of a steel plate is arranged at the bottom of the 2 side, and the grounding fitting 2
The hole 30 of No. 8 is positioned so as to fit into the convex portion 29 of the back surface 9.

Then, the steel plate rear cover 23 is pushed in from the front so that it comes into close contact with the back surface 9.

At this time, the grounding fitting 28 and the rear cover 23 are in surface contact with each other.

Next, after the compressor 18 is supported by the bottom plate 19, the steel plate front cover 25 is fitted from the front and tightened, so that the front cover 25 and the rear cover 23 come into contact with each other, and the heat exchanger 1
7 with which the protruding piece 27 of the front cover 25 comes into contact.

Next, to explain the function and effect of the outdoor unit assembled in the above configuration, when there is a leakage in the energized compressor 0, the metal discharge suction pipe (not shown) heat exchanger 17
, electrical leakage may occur in the indoor/outdoor unit connection piping (not shown), and there is a risk that the indoor/outdoor unit connection piping may be touched by human hands.
Grounding is required because contact with broken corrugated iron walls of houses can cause electric shocks and fires due to electrical leakage.

In the event that there is a current leakage in the compressor, the protruding piece 27, front cover 25, and grounding fitting 28 are brought into conductive contact with each other from the heat exchanger 17, which is in an electrically conductive state.
It is more grounded to the ground.

As mentioned above, this idea consists of integrally molding the bottom, back, and partition plate 13 of plastic to partition the heat exchange chamber and compressor chamber, and the front, top, and left and right side surfaces. A compressor cover made of steel plate is installed in the compressor room to surround the compressor, and the compressor cover extends into the heat exchange room and comes into contact with the heat exchanger. The projecting piece is installed in a state where the grounding metal fitting installed on the base of the electrical compartment side is placed in surface contact, and this earthing metal fitting is exposed from the outside of the plastic casing, making it lightweight since it is made entirely of plastic.

It has great practical effects, such as greatly helping to expand the installation and use conditions of thinner and insulated casings.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing an outdoor unit of an air conditioner according to this invention, Fig. 2 is a cross-sectional view of Fig. 1, Fig. 3 is an enlarged exploded perspective view showing the main parts of this invention, Fig. 4 is a sectional view taken along the fV-TV line in FIG. 3; Nazu, 2 is the base, 3 is the cabinet, 22 is the cover
28 is a grounding metal fitting.

Claims (1)

[Scope of utility model registration request] The base is integrally molded with plastic, and the base is integrally molded with plastic, which separates the bottom, back, and heat exchange chambers where the heat exchanger is installed, and the compressor room where the compressor is installed, and the front, top, and left and right sides are integrally molded with plastic. A compressor cover made of a steel plate is provided in the compressor chamber to surround the compressor, and the compressor cover extends to a heat exchange room and has a heat exchanger cover. In addition to providing a projecting piece that is in contact with the appliance, the grounding metal fitting installed on the base on the electrical equipment room side is brought into surface contact with the grounding metal fitting, and this grounding metal fitting is exposed outside the plastic housing. Outdoor unit of the harmonizer.